 | Charles Jesse Bullock - 1907 - 732 sayfa
...arising from vice or misery, whicl -, in any degree contributes to shorten the natural duration ol human life. Under this head, therefore, may be enumerated all unwholesome occupations, severe labor and exposure to the seasons, extreme poverty, bad nursing of children, great towns, excesses... | |
 | Walton Hale Hamilton - 1916 - 914 sayfa
...for them? These considerations prevent a large number of people from pursuing the dictates of nature. The positive checks to population are extremely various,...the natural duration of human life. Under this head may be enumerated all unwholesome occupations, severe labour, exposure to the seasons, extreme poverty,... | |
 | Clarence Marsh Case - 1924 - 1026 sayfa
...all civilized nations from pursuing the dictate of nature in an early attachment to one woman. . . . The positive checks to population are extremely various,...be enumerated all unwholesome occupations, severe labor, and exposure to the seasons, extreme poverty, bad nursing of children, large towns, excesses... | |
 | Philip Sargant Florence - 1926 - 88 sayfa
...low marriage rate to indicate moral restraint, and a high death rate to indicate misery and vice. " The positive checks to population are extremely various,...contributes to shorten the natural duration of human life." Moral restraint and the preventive checks have already appeared in the family tree of population (page... | |
 | Philip Sargant Florence - 1926 - 88 sayfa
...to indicate moral restraint, and a high death rate to indicate misery and vice. " The positive [17] checks to population are extremely various, and include...contributes to shorten the natural duration of human life." Moral restraint and the preventive checks have already appeared in the family tree of population (page... | |
 | Margaret Sanger - 1926 - 266 sayfa
...unrestrained procreation. These positive checks, he considered, were extremely various and included every cause, whether arising from vice or misery,...degree contributes to shorten the natural duration of life. Under this head he enumerated all unwholesome occupations, severe labour and exposure to the... | |
 | Jerome Davis, Harry Elmer Barnes - 1927 - 1094 sayfa
...causes of misery and positive checks to propagation. Malthus classifies the positive checks as follows: The positive checks to population are extremely various,...whether arising from vice or misery, which in any degree contribute to shorten the natural duration of human life. Under this head therefore may be enumerated,... | |
 | Dexter Merriam Keezer, Addison Thayer Cutler, Frank Richardson Garfield - 1928 - 736 sayfa
...for them? These considerations prevent a large number of people from pursuing the dictates of nature. The positive checks to population are extremely various,...the natural duration of human life. Under this head may be enumerated all unwholesome occupations, severe labor, exposure to the seasons, extreme poverty,... | |
 | Emory Stephen Bogardus - 1928 - 680 sayfa
...slight, compared with the evils which result from any of the other checks to population. (pp. 87-88) The positive checks to population are extremely various,...whether arising from vice or misery, which in any degree contribute to shorten the natural duration of human life. Under this head therefore may be enumerated... | |
 | 1927 - 414 sayfa
...due to unrestrained procreation. positive checks, he considered, were extremely various and included every cause, whether arising from vice or misery,...degree contributes to shorten the natural duration of life. Under this head he enumerated all unwholesome occupations, severe labor and exposure to the seasons,... | |
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The positive checks to population are extremely various, and include every cause, whether arising from vice or misery, which in any degree contributes to shorten the natural duration of human life. 
